Glutaraldehyde Storage — Biocide Tank Selection

Storing Glutaraldehyde? Start Here

Glutaraldehyde is a powerful biocide widely used in oilfields, cooling towers, and industrial microbial control. It's typically supplied as a 25% to 50% aqueous solution, as pure glutaraldehyde is unstable. This chemical is effective against a broad range of microorganisms, making it a popular choice for industries needing reliable microbial control. However, its mildly acidic nature and potential to degrade certain materials mean careful consideration is needed when selecting storage solutions.

Can you store it in a poly tank?

Yes, you can store glutaraldehyde in polyethylene (HDPE or XLPE) tanks. These materials are standard for both concentrated and diluted solutions. Ensure that polypropylene fittings, PVC piping, and EPDM gaskets are used to prevent any compatibility issues.

Key Issue: Material Compatibility

Glutaraldehyde's cross-linking chemistry can degrade natural rubber and protein-based gasket materials. It's crucial to use EPDM or Viton (FKM) gaskets to avoid material degradation. Avoid using carbon steel, aluminum, and copper, as they are susceptible to corrosion or tarnishing when in contact with glutaraldehyde.

The safety that actually matters

• Use appropriate personal protective equipment (PPE) to prevent skin and eye contact.
• Ensure proper ventilation to avoid inhalation of fumes.
• Regularly inspect storage tanks and fittings for signs of wear or damage.
• Follow manufacturer guidelines for safe handling and storage.

Common questions

What type of gaskets should I use?

EPDM or Viton (FKM) gaskets are recommended to prevent degradation.

Can glutaraldehyde be stored in stainless steel tanks?

Yes, 316L stainless steel tanks are suitable, especially for high-temperature applications.

Is glutaraldehyde safe to handle?

While effective, it requires careful handling due to its potential to cause skin burns and respiratory irritation. Always use PPE and follow safety protocols.